WO1989004043A1 - Optical data recording medium - Google Patents

Optical data recording medium Download PDF

Info

Publication number
WO1989004043A1
WO1989004043A1 PCT/JP1988/000937 JP8800937W WO8904043A1 WO 1989004043 A1 WO1989004043 A1 WO 1989004043A1 JP 8800937 W JP8800937 W JP 8800937W WO 8904043 A1 WO8904043 A1 WO 8904043A1
Authority
WO
WIPO (PCT)
Prior art keywords
excess
recording medium
recording
thin film
optical information
Prior art date
Application number
PCT/JP1988/000937
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
Takeo Ohta
Masami Uchida
Koichi Kotera
Kunihiro Matsubara
Original Assignee
Matsushita Electric Industrial Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co., Ltd. filed Critical Matsushita Electric Industrial Co., Ltd.
Priority to DE8888908329T priority Critical patent/DE3877192T2/de
Priority to KR1019890701178A priority patent/KR960013215B1/ko
Publication of WO1989004043A1 publication Critical patent/WO1989004043A1/ja

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B7/2433—Metals or elements of groups 13, 14, 15 or 16 of the Periodic System, e.g. B, Si, Ge, As, Sb, Bi, Se or Te
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0055—Erasing
    • G11B7/00557—Erasing involving phase-change media
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24312—Metals or metalloids group 14 elements (e.g. Si, Ge, Sn)
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24314—Metals or metalloids group 15 elements (e.g. Sb, Bi)
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24316—Metals or metalloids group 16 elements (i.e. chalcogenides, Se, Te)
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/146—Laser beam
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/165—Thermal imaging composition

Definitions

  • the present invention relates to an optical information recording medium capable of recording, reproducing, and erasing information with a high density and a large capacity by using a laser beam or the like.
  • T e and T e 0 2 shall be the main component T e O x (0 ⁇ X ⁇ 2. 0) write-once de office using a thin film
  • chalcogen materials such as S.R. 0 V shinsky (Es-A-R-O-B-S-SIN-SKY) Ge 16 T e ⁇ 1 S b ⁇ S £ It has been known. It is heated and melted by laser light, becomes amorphous by rapid cooling, records information, and is further heated by irradiating with laser light. By doing so, it can be crystallized and the record can be erased.
  • a s 2 S 3 and A s 2 S e 3 Ah Ru have the S b 2 S 3 or the like mosquitoes Le co gain down element and Ru have the Periodic Table V Zokua such Group IV elements such as G e Thin films composed of combinations of these are widely known.
  • a thin film is crystallized in advance, and the laser light focused to about 1 m ⁇ is subjected to intensity modulation according to the information.
  • a disk-shaped recording with the thin film formed on the surface By irradiating the disk in a rotating state, the laser light-irradiated part is heated to a temperature higher than the melting point of the thin film, rapidly cooled, and becomes an amorphous dot. And record the information.
  • a long spot light should be applied in the direction of the disk rotation track.
  • the thin film is heated and heated, and is crystallized again by the slow cooling effect of the long spot light.
  • the thin film is heated and heated by laser light irradiation, heated, melted, quenched and heated, heated, and slowly cooled to record and erase information.
  • the signal quality may fluctuate accordingly.
  • the cause of this change is the substrate material resulting from the rapid repetition of heating and cooling of 400 or more due to recording spot light and erasing spot light.
  • Thermal and mechanical damage of the steel may be considered.
  • thermal and mechanical damage to the recording thin film may occur.
  • the composition in the film depending on their composition, the composition in the film
  • the present invention relates to recording and erasing optical information by thermally changing the state of a thin film by irradiation with laser light or the like, and to improve the recording and erasing cycle characteristics.
  • thin film G e T e and Toku ⁇ that you formed with three components of S b 2 T e 3 and S b, the the et, the component ratio of its, S b ZS b sT When the molar ratio of e is b, 0.3 ⁇ b ⁇ 0.8 is selected.
  • the blackening (crystallization) temperature can be increased to 180 or more.
  • this thin film has excellent thermal stability, signal quality in the recording (amorphization) and erasing (crystallization) or erasing in the reverse mode and recording cycle Is likely to decrease.
  • S b is the crystallization of this, in the process of amorphization, has a blocking effect against phase separation of G e T e component and S b 2 T e 3 component was also an improvement in re-Gu Le characteristics
  • the nucleation of crystallization can be expected to be released for crystallization, and the sensitivity to recording and erasure can be improved, and the single laser beam can — Enable lighting.
  • Figure 1 is a composition of the recording thin film Ru used for optical information recording medium of an embodiment of the present invention triangular die A gram-second FIG excess S b ZS b 2 T of the recording sensitivity of the medium (CN ratio) characteristic diagram showing the dependency against the e 3 ratio
  • FIG. 3 is a triangular die a gram of composition of the recording thin film Ru using your only that the optical information recording medium body to another embodiment of the present invention.
  • a resin substrate on which laser light guide grooves are formed is used as the substrate on which the thin film, which is the recording layer.
  • a ZnS dielectric layer containing 15 mol% or more of SiO 2 is preferable.
  • S b £ T A mixed thin film consisting of e3, GeTe and excess Sb is formed.
  • Figure 2 shows the relationship between film sensitivity and composition.
  • the G e T e ZS b 2 T e 3 1 .2
  • the value of the excess S b / S b 2 T e 3 is, 1 0, 1 8, 3 indicates 0 for even two have been the ing.
  • the C / N ratio in the low power region with a laser power of 6 mw increases as shown by curve 3, and the sensitivity is improved.
  • the CZN ratio was about 55 dB at any composition point.
  • G e T e ZS b 2 T e 3 ratio is Ri Do rather large, the more the G e T e Li pitch, sensitivity decreases, and Ranisa Lee click le characteristics and relationship between the composition - - is a variation with JCZN of C / N for Size Lee click le, the magnitude of the excess S b / S b 2 T e 3 values for l CN is ing the following order. JCZN 1 B ⁇ IC / N 18 ⁇ CZN 30, and it is preferable to select S b / S b 2 Te 3 > 20.
  • the crystallization speed is high, recording and erasing can be performed by a single beam.
  • the points E and H in which the excess Sb is smaller than the Sb25 mol% line, have a large deterioration in the cycle characteristics.
  • the excess Sb is more on the Sb side than the 25-mol% line, and the degradation of the cycle characteristics increases again at the point J in the region where the excess Sb is large.
  • the characteristic point D having more Sb the recording sensitivity and the C / N ratio decrease.
  • the thermal stability on the contrary, the higher the g value or the b value, the higher the area.
  • the g value and b value can be selected from the triangular diagram shown in the figure according to the disk rotation speed.
  • composition point A recording Pas word over 1 8 mw, reduced leaf blade of CZN ratio and erasure ratio in erasing power over 1 0 mw, in 1 0 5 or more re-Gu Le I can't.
  • the sensitivity is lower than composition point A.
PCT/JP1988/000937 1987-10-28 1988-09-16 Optical data recording medium WO1989004043A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8888908329T DE3877192T2 (de) 1987-10-28 1988-09-16 Speichermedium fuer optische daten.
KR1019890701178A KR960013215B1 (ko) 1987-10-28 1988-09-16 광학정보 기록매체

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62272502A JP2696858B2 (ja) 1987-10-28 1987-10-28 光学情報記録再生消去部材
JP62/272502 1987-10-28

Publications (1)

Publication Number Publication Date
WO1989004043A1 true WO1989004043A1 (en) 1989-05-05

Family

ID=17514801

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1988/000937 WO1989004043A1 (en) 1987-10-28 1988-09-16 Optical data recording medium

Country Status (6)

Country Link
US (1) US5024910A (de)
EP (1) EP0344317B1 (de)
JP (1) JP2696858B2 (de)
KR (1) KR960013215B1 (de)
DE (1) DE3877192T2 (de)
WO (1) WO1989004043A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1010519B (zh) * 1985-09-25 1990-11-21 松下电器产业株式会社 可逆的光学情报记录介质
US5294523A (en) * 1988-08-01 1994-03-15 Matsushita Electric Industrial Co., Ltd. Optical information recording medium
WO1991005342A1 (en) * 1989-09-28 1991-04-18 Matsushita Electric Industrial Co., Ltd. Optical data recording medium and method of producing the same
US5194363A (en) * 1990-04-27 1993-03-16 Matsushita Electric Industrial Co., Ltd. Optical recording medium and production process for the medium
JP2639174B2 (ja) * 1990-04-27 1997-08-06 松下電器産業株式会社 光記録媒体
JP3076412B2 (ja) * 1991-07-24 2000-08-14 松下電器産業株式会社 光学的情報記録媒体および光学的情報記録再生方法
JPH05144082A (ja) * 1991-11-26 1993-06-11 Matsushita Electric Ind Co Ltd 光記録媒体と光記録媒体用保護膜
CN1083615A (zh) * 1992-08-19 1994-03-09 菲利浦电子有限公司 信息存储系统
EP0583845A1 (de) * 1992-08-19 1994-02-23 Koninklijke Philips Electronics N.V. Datenspeichersystem
JPH07141693A (ja) * 1993-09-22 1995-06-02 Toshiba Corp 情報記録媒体
US6143468A (en) * 1996-10-04 2000-11-07 Mitsubishi Chemical Corporation Optical information recording medium and optical recording method
JP3570169B2 (ja) * 1997-08-22 2004-09-29 松下電器産業株式会社 光学情報記録媒体
US6753059B2 (en) * 2001-03-29 2004-06-22 Korea Institute Of Science And Technology Optical recording material and optical recording medium using same
US20030015061A1 (en) * 2001-07-18 2003-01-23 Chase Charles E. Catalytic reactor for volatile minerals
WO2010080002A2 (ko) * 2009-01-12 2010-07-15 연세대학교 산학협력단 상변화 물질의 나노와이어 제조 방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62154247A (ja) * 1985-12-26 1987-07-09 Asahi Chem Ind Co Ltd 記録材料の製造方法
JPS62196181A (ja) * 1986-01-27 1987-08-29 Nippon Columbia Co Ltd 光情報記録媒体
JPS62209742A (ja) * 1986-03-11 1987-09-14 Matsushita Electric Ind Co Ltd 書換え可能な光学情報記録部材
JPH06211683A (ja) * 1992-09-04 1994-08-02 Katsuhiko Mikoshiba 分化促進剤
JPH06253886A (ja) * 1992-09-29 1994-09-13 Res Dev Corp Of Japan Ｃｒｋタンパクに対するモノクローナル抗体と、この 抗体を産生するハイブリドーマ株

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53141040A (en) * 1977-05-16 1978-12-08 Hitachi Ltd Information recording material
JPS57205193A (en) * 1981-06-12 1982-12-16 Fuji Photo Film Co Ltd Optical information recording medium
JPS6189889A (ja) * 1984-10-11 1986-05-08 Nippon Columbia Co Ltd 光情報記録媒体
JPS61152487A (ja) * 1984-12-25 1986-07-11 Nippon Columbia Co Ltd 光情報記録媒体
US4670345A (en) * 1985-02-22 1987-06-02 Asahi Kasei Kogyo Kabushiki Kaisha Information recording medium
JPS62222442A (ja) * 1986-03-22 1987-09-30 Nippon Telegr & Teleph Corp <Ntt> 書換型光記録媒体
JP3066553B2 (ja) * 1992-12-24 2000-07-17 三菱電機ホーム機器株式会社 食器乾燥機
JPH06196536A (ja) * 1992-12-25 1994-07-15 Nec Kansai Ltd Ｔａｂ式半導体装置の特性検査装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62154247A (ja) * 1985-12-26 1987-07-09 Asahi Chem Ind Co Ltd 記録材料の製造方法
JPS62196181A (ja) * 1986-01-27 1987-08-29 Nippon Columbia Co Ltd 光情報記録媒体
JPS62209742A (ja) * 1986-03-11 1987-09-14 Matsushita Electric Ind Co Ltd 書換え可能な光学情報記録部材
JPH06211683A (ja) * 1992-09-04 1994-08-02 Katsuhiko Mikoshiba 分化促進剤
JPH06253886A (ja) * 1992-09-29 1994-09-13 Res Dev Corp Of Japan Ｃｒｋタンパクに対するモノクローナル抗体と、この 抗体を産生するハイブリドーマ株

Also Published As

Publication number Publication date
JP2696858B2 (ja) 1998-01-14
EP0344317A4 (de) 1990-06-05
JPH01116937A (ja) 1989-05-09
DE3877192D1 (de) 1993-02-11
KR890702193A (ko) 1989-12-23
KR960013215B1 (ko) 1996-10-02
DE3877192T2 (de) 1993-07-15
EP0344317B1 (de) 1992-12-30
US5024910A (en) 1991-06-18
EP0344317A1 (de) 1989-12-06

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